EP2077922A1 - Mold - Google Patents

Mold

Info

Publication number
EP2077922A1
EP2077922A1 EP07745563A EP07745563A EP2077922A1 EP 2077922 A1 EP2077922 A1 EP 2077922A1 EP 07745563 A EP07745563 A EP 07745563A EP 07745563 A EP07745563 A EP 07745563A EP 2077922 A1 EP2077922 A1 EP 2077922A1
Authority
EP
European Patent Office
Prior art keywords
mold
press
fit portion
upper mold
molten metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07745563A
Other languages
German (de)
French (fr)
Other versions
EP2077922B1 (en
Inventor
Junichi Iwasaki
Yutaka Hagata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd filed Critical Sintokogio Ltd
Publication of EP2077922A1 publication Critical patent/EP2077922A1/en
Application granted granted Critical
Publication of EP2077922B1 publication Critical patent/EP2077922B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates

Definitions

  • This invention relates to a mold. More specifically, it relates to a mold that can prevent molten metal from leaking onto a parting plane, an overlapped surface formed between an upper mold and a lower mold, into which lower mold a required amount of molten metal is poured, and then onto which the upper mold is fitted.
  • a lower mold and a upper mold are disclosed.
  • the lower mold is a main mold formed by various kinds of mold-forming methods, and has no cavity for a gating system, but only a cavity for casting
  • the upper mold is a main mold formed by various kinds of mold-forming methods, and has no cavity for a gating system, but has a protruding portion capable of forming a cavity for castings in combination with a cavity of the lower mold.
  • adding a flow-off cavity i.e., a cavity necessary for castings.
  • the amount of the molten metal that is poured into the lower mold is not always equal to the amount that is required. So, a portion of the molten metal may remain unused, depending on the accuracy of the pouring device. Not all of the unused molten metal flows into a flowoff cavity, as described in Patent Publication 1. But some may leak out onto a parting plane of the lower mold. The molten metal that leaks out may form a fin. This raises a problem of adding another process, at a later stage, of removing fins. If the molten metal leaks out in large amount it may form an object extraneous to the pressurizing process, making it difficult to achieve a complete pressurizing of the upper and lower molds. (0007)
  • this invention aims to provide a mold that prevents molten metal from leaking onto a parting plane, and at same time prevents molten metal from flowing out of a mold. (0008)
  • the mold of this invention comprises ⁇ a lower mold comprising a concave portion having a shape of a product, into which portion the amount of molten metal required to produce a casting is poured! and, an upper mold comprising a convex portion having the shape of a casting and forming a cavity required to produce a casting, when the upper mold overlaps the lower mold; wherein a structure is formed so as to have certain clearances between a press-fit portion of the lower mold and a press-fit portion of the upper mold, such that the molten metal is prevented from leaking onto a parting plane formed where the upper mold and the lower mold overlap when producing the casting.
  • the structure is formed so as to have certain clearances between the press-fit portion of the lower mold and that of the upper mold, such that it prevents the molten metal from leaking. Because of this structure, the kinetic energy of the molten metal is reduced. This prevents the excess molten metal from leaking onto the parting plane, and also from leaking out of the mold in the pressurizing process. This, in turn, reduces fins produced on the castings. Also, defective products due to failures in pressurizing are reduced because excess molten metal is less likely to form an extraneous object on the parting plane in the pressurizing process. Best Mode of Carrying Out the Invention (0010)
  • the mold according to this invention comprises: a lower mold comprising a concave portion, into which portion the amount of molten metal required to produce a casting is poured; and an upper mold comprising a convex portion having the shape of the product, which portion forms a cavity that is required to produce a casting, when the upper mold overlaps the lower mold.
  • the lower mold and the upper mold can be suitably molded by various molding methods, such as a green sand mold, shell mold, cold box molding process, self- hardening mold, and the like.
  • the mold according to the present invention may comprise a core.
  • the mold according to the present invention may also comprise a permanent mold.
  • the mold molding methods according to the present invention are not limited to squeeze molding, blow squeeze molding, air flow and press molding, or a mixture thereof, but comprise molding methods like cut molding, pour molding, and the like.
  • the castings are products with a gating system, such as sprue, runner, ingate, and the like, and a gating system such as riser, flowoff gas vent, or the like, removed from the molded materials that are taken out from the mold after the molding flask is shaken out, such that they can be fitted to or installed in the machine as a final part or component, or can be commercially sold as independent products, such as a round-shaped brake drum or a square case.
  • the molten metals described above are those ferrous or non-ferrous metals in a melted state that can be poured into the mold. (0011)
  • the mold according to one embodiment of the present invention is comprised of a lower mold 5, which is a main mold molded in a molding flask 2, by a green sand molding method, using green sand 1.
  • the lower mold has a concave portion 4 having the shape of a product, into which portion the amount of molten metal 3 that is required to produce a casting is poured.
  • the mold has an upper mold 15, which is a main mold molded in a molding flask 12, by the green sand molding method, using green sand 11, and which has a convex portion 14, having the shape of the product, which portion forms a cavity that is required to produce a casting W.
  • a structure A is formed so as to have certain clearances (gaps) between the press-fit portion Fl of the lower mold 5 and the press-fit portion F2 of the upper mold 15, such that it prevents molten metal from leaking onto the parting plane Pa formed by the parting plane PIa of the lower mold 5 and the parting plane P2a of the upper mold 15 when they overlap to produce a casting.
  • Structure A which prevents the molten metal from leaking, comprises a protruding press-fit portion 6, protruding from the parting plane PIa, and formed along the outer circumference of the concave portion 4 of the lower mold 5, and a groove portion 16, formed on the upper mold 15, which portion fits with the protruding press-fit portion 6.
  • press-fit portions Fl and F2 are the protruding press-fit portion 6 and the groove portion 16.
  • the certain clearances are clearance ⁇ 1 in the horizontal direction, between the side face 6a of the protruding press-fit portion 6, and the side face 16a of the groove portion 16, which side face is a side face of a press-fit portion 17 positioned close to the outer circumference of the convex portion 14 of the upper mold 15, a clearance ⁇ 2 in the horizontal direction, between the other side face 6c of the protruding press-fit portion 6, and the other side face 16c of the groove portion 16, and a clearance ⁇ 3 in the vertical direction between the top face 6b of the protruding press-fit portion 6, and the bottom face 16b of the groove portion 16.
  • the clearances are arranged so as to be in a range of from 0.1 to 4.0 mm. This is because if the clearance were less than 0.1 mm, the upper mold 5 and the lower mold 15 might come into contact with each other. If the clearance were to be more than 4.0 mm, as shown in Fig.5 , a casting W may be affected by a broken casting when metal S, which has become solidified in the clearance, is removed. To make the clearance larger than this is undesirable.
  • the protruding press-fit portion 6 is not limited to any particular shape, so long as it has a shape that surrounds the product along its circumference, or the outer periphery of a square, or the like.
  • the protruding press-fit portion 6 is shown to have a round shape (ring). That shape is most effective in preventing a leakage of molten metal when the casting W has a circular shape in its periphery, as seen in Figs. 2 and 3.
  • a number of pins with a narrow spacing between them or a number of crescents spaced apart that form a ring shape can also be used.
  • the shapes of the protruding press-fit portion 6 and the groove portion 16, according to the present invention are not particularly limited, if they have forms (for example, shapes and dimensions) that are functional, in the pressurized process, in preventing excess molten metal from leaking onto the parting plane Pa, a plane formed by the overlapping of the upper mold and the lower mold.
  • the shapes of the protruding press-fit portion 6 and the groove portion 16 are made close to those of rectangles. These include a square, a trapezoid, and the like, in their cross section perpendicular to a parting plane PIa of the lower mold 5 and a parting plane P2a of the upper mold 15.
  • the structure thus formed prevents excess molten metal 3 from leaking onto the parting plane Pa because the molten metal 3 either rises towards the upper mold or makes a detour if it should slip through clearances ⁇ 1 to ⁇ 3 formed by the overlapping of the upper mold 15 and the lower mold 5.
  • the molten metal has reduced kinetic energy when it rises (makes a detour) toward the upper mold, and thus its leaking onto the parting plane is easily prevented.
  • the height of the protruding press-fit portion 6 as measured from the parting plane PIa and the depth of the groove portion 16 as measured from the parting plane P2a are arranged so as to be in the range of from 5 to 50 mm, while each of the clearances ⁇ 1, ⁇ 2, and ⁇ 3 between the press-fit portion Fl of the lower mold 5 and the press-fit portion F2 of the upper mold 15 is appropriately secured. This is because it is feared that the molten metal 3 may pass through the clearances ⁇ 1, ⁇ 2 and ⁇ 3 and may leak onto the parting plane Pa if both the height and the depth were less than 5 mm. That height is insufficient for having the kinetic energy of the molten metal 3 reduced.
  • both the height and the depth were more than 50 mm, a problem may arise, in molding a protruding press-fit portion and a groove portion. That is, because if a molding material is not appropriately filled in these areas, then the areas near the convex portion or the corner areas of the protruding press-fit portion and a groove portion may lack strength.
  • the widths of both the protruding press-fit portion 6 and the groove portion 16, while securing the clearances ⁇ 1, ⁇ 2, and ⁇ 3 between the press-fit portion Fl of the lower mold 5 and the press-fit portion F2 of the upper mold 15, are arranged so as to be in the range of 10 to 50 mm. This is because, if the width were to be less than 10 mm, it is feared that the molten metal 3 that rises could pass straight through the horizontal clearance and could leak onto the parting plane Pa. If the width were to be more than 50 mm the effect of preventing the molten metal from rising and leaking onto the parting plane would be overcome by the deficiency in the strength of the parting plane due to the decrease of the surface area of the parting plane.
  • a flowoff hollow (cavity) 18 can be formed on a press-fit portion 17 positioned close to the outer circumference of the convex portion 14 of the upper mold 15.
  • the flowoff hollow 18, when formed, can prevent the molten metal from leaking onto or passing over the parting plane Pa and leaking out of the mold, by absorbing excess molten metal Sl that has been disadvantageously left unused, depending on the level of accuracy in the pouring of the pouring machine, from the area where the molten metal is finally poured in the pressurizing process.
  • the area ratio of the opening portion 18a of the flow-off hollow 18 to the split surface 17a of the casting W at the press-fit portion 17 of the upper mold 15 is preferably 1 to 20% per each of the flowoff hollows 18. This is because if the area ratio were to be more than 20%, the flow-off portion that became solidified in the flowoff hollow would be so thick that it is feared that the casting would suffer a broken casting if the flow -off portion were to be broken off. Also, the casting may be affected by a deformation of the shape at the corner areas of the casting W, where the molten metal is finally reached in the pressurizing process, because the pressurizing force cannot be sufficiently exerted on the molten metal.
  • the ratio of the weight of the excess molten metal that enters the flow-off hollow 18 to the weight of the molten metal requires to produce the casting W is preferably 1 to 20% per each flowoff hollow 18. This is because if the ratio of the weight were to be more than 20%, an excessive pressure would be applied to the molten metal in a pressurizing process and a problem of penetration would occur with the portion of the casting W where the molten metal is finally reached. (0017)
  • Structure A which prevents any leakage of molten metal, comprises a protruding press-fit portion 6 and a groove portion 16.
  • Structure B is formed so as to prevent a leakage of molten metal by having, in the range of 5 to 50 mm, a step H between a split surface 33a of the casting W, at the press-fit portion 33, which is close to the circumference of the protruding portion 32 of the upper mold 31, and the parting plane P2b of the upper mold 31, which is at the outer circumference of the split surface 33a.
  • structure B is simpler than Structure A.
  • a step H is arranged so as to be in the range of from 5 to 50 mm. If H is less than 5 mm, molten metal may leak onto the parting plane because the height is too low to have the kinetic energy of the molten metal be reduced. If H is more than 50 mm, a casting may be affected by low strength of the convex portion and corner areas of the mold, depending on the complexity of the shapes of the concave portion or the convex portion of the casting, such that when a casting has a higher protrusion and a deeper concave portion the molding material may not be sufficiently filled when the casting is produced.
  • a clearance between the press-fit portion F3 of the lower mold 21 and the press-fit portion F4 of the upper mold 31 is arranged so as to be in the range of from 0.1 to 4.0 mm.
  • the press-fit portion F3 of the lower mold 21 of the present embodiment is the upper end (top) portion 22, which forms a parting plane Pl of the lower mold 21.
  • the press-fit portion F4 of the upper mold 31 is a press-fit portion 33 of the upper mold 31.
  • the clearance (gap) is in the horizontal direction between the inner side face 22a of the upper-end portion 22 and the press-fit side face 33b of the press-fit portion 33 of the upper mold 31.
  • At least one flowoff hollow 34 can be formed on the press-fit portion 33 of the upper mold 31.
  • the area ratio of the opening portion 34a of the flow -off hollow 34 formed on the press-fit portion 33 to the split surface 33a of the casting W at the press-fit portion 33 of the upper mold 31 is preferably 1 to 20%.
  • the ratio of the weight of the excess molten metal that enters the flowoff hollow 34 to the weight of the molten metal required to produce a casting is preferably 1 to 20%.
  • Fig. 1 shows a vertical cross section of the lower mold and the upper mold of the mold in one embodiment of the present invention.
  • Fig. 2 shows a vertical cross section of the casting in one embodiment of the present invention.
  • Fig. 3 shows a plan view of a casting in one embodiment of the present invention.
  • Fig. 4 shows a vertical cross-section of the mold comprising the lower mold, and the upper mold overlapping the lower mold, as shown in Fig. 1.
  • Fig. 5 illustrates metal that has become solidified in the clearance.
  • Fig. 6 shows a vertical cross section of a mold comprising the lower mold, and the upper mold having a flow off hollow formed therein and overlapping the lower mold.
  • Fig. 7 illustrates the conditions of excess metal as absorbed in a flowoff hollow as shown in Fig. 6.
  • Fig. 8 shows a vertical cross section of a mold comprising the lower mold, and the upper mold overlapping the lower mold in another embodiment of the present invention.
  • Fig. 9 shows a vertical cross-section of a mold comprising the upper mold, and the upper mold having a flowoff hollow formed therein and overlapping the lower mold as shown in Fig. 8.

Abstract

A mold comprises a lower mold part (5) with a concave section (4) having the structure of a cast part and an upper mold part (15) with a convex section (14) having the structure of the cast part and forming a cavity when the upper mold part overlaps the lower mold part. Intermediate spaces are formed between a pressing section (F1) of the lower mold part and a pressing section (F2) of the upper mold part.

Description

Description
Mold
(0001)
Technical Field
This invention relates to a mold. More specifically, it relates to a mold that can prevent molten metal from leaking onto a parting plane, an overlapped surface formed between an upper mold and a lower mold, into which lower mold a required amount of molten metal is poured, and then onto which the upper mold is fitted.
(0002)
Background Art Conventionally it is considered indispensable in manufacturing a mold that, to obtain a good casting by controlling the flow of molten metal and by restraining any involvement of any impure substance and gas in the product, a passage for the molten metal called a gating system, which has nothing to do with the shape of a casting (see, for example, Non-Patent Publication l), is provided. However, the gating system often has lowered the yield rate of casting.
Moreover, it also requires removing the gating system after crashing the mold.
Thus the gating system often worked disadvantageously to the productivity and the cost efficiency of casting.
(0003) Therefore, to improve the yield rate for casting, it is proposed to use a molding method wherein it is carried out by using a lower mold, which is a main mold formed by various kinds of molding methods, and which has no gating system, but only a cavity required for casting, and an upper mold, which is a main mold formed by various kinds of molding methods, and has no cavity for a gating system, but which has a protruding portion capable of forming a cavity for casting. In this casting method it is proposed that, after the molten metal required to produce only the casting is poured into the cavity of the lower mold, the protruding portion of the upper mold be advanced into the cavity filled with the molten metal so as to form the cavity required to produce the casting, and that then the upper mold overlap the lower mold.
(0004)
In the molding method according to the present invention, for the mold that makes unnecessary the work of eliminating, from castings, gating system, feeders etc., that are used in the method based on the gating system plan, a lower mold and a upper mold are disclosed. In this method the lower mold is a main mold formed by various kinds of mold-forming methods, and has no cavity for a gating system, but only a cavity for casting, and the upper mold is a main mold formed by various kinds of mold-forming methods, and has no cavity for a gating system, but has a protruding portion capable of forming a cavity for castings in combination with a cavity of the lower mold. Further also disclosed is adding a flow-off cavity, i.e., a cavity necessary for castings. By adding this flowoff cavity it becomes possible to obtain some tolerance in the amount of such molten metal that is required to produce the casting. (0005) [Non-Patent Publication l] Nihon Chuzou Kogakukai (Japan Foundry Engineering Society), Illustrated Foundry Dictionary ,1st Ed., published by Nikkan Kogyo Sinbunsha, Japan, Nov. 30, 1995, page 212, gating system N and [Patent Publication l] Patent Application Publication Gazette No. JP2005-52871
Description of the Invention (0006) However, in the process of causing the upper mold to overlap the lower mold (hereafter, pressurizing process), of the molding method described above, the amount of the molten metal that is poured into the lower mold is not always equal to the amount that is required. So, a portion of the molten metal may remain unused, depending on the accuracy of the pouring device. Not all of the unused molten metal flows into a flowoff cavity, as described in Patent Publication 1. But some may leak out onto a parting plane of the lower mold. The molten metal that leaks out may form a fin. This raises a problem of adding another process, at a later stage, of removing fins. If the molten metal leaks out in large amount it may form an object extraneous to the pressurizing process, making it difficult to achieve a complete pressurizing of the upper and lower molds. (0007)
In view of the above problems, this invention aims to provide a mold that prevents molten metal from leaking onto a parting plane, and at same time prevents molten metal from flowing out of a mold. (0008)
The mold of this invention comprises^ a lower mold comprising a concave portion having a shape of a product, into which portion the amount of molten metal required to produce a casting is poured! and, an upper mold comprising a convex portion having the shape of a casting and forming a cavity required to produce a casting, when the upper mold overlaps the lower mold; wherein a structure is formed so as to have certain clearances between a press-fit portion of the lower mold and a press-fit portion of the upper mold, such that the molten metal is prevented from leaking onto a parting plane formed where the upper mold and the lower mold overlap when producing the casting.
Effects of the Invention (0009)
In the present invention, the structure is formed so as to have certain clearances between the press-fit portion of the lower mold and that of the upper mold, such that it prevents the molten metal from leaking. Because of this structure, the kinetic energy of the molten metal is reduced. This prevents the excess molten metal from leaking onto the parting plane, and also from leaking out of the mold in the pressurizing process. This, in turn, reduces fins produced on the castings. Also, defective products due to failures in pressurizing are reduced because excess molten metal is less likely to form an extraneous object on the parting plane in the pressurizing process. Best Mode of Carrying Out the Invention (0010)
The mold according to this invention comprises: a lower mold comprising a concave portion, into which portion the amount of molten metal required to produce a casting is poured; and an upper mold comprising a convex portion having the shape of the product, which portion forms a cavity that is required to produce a casting, when the upper mold overlaps the lower mold.
The lower mold and the upper mold can be suitably molded by various molding methods, such as a green sand mold, shell mold, cold box molding process, self- hardening mold, and the like. The mold according to the present invention may comprise a core. The mold according to the present invention may also comprise a permanent mold. The mold molding methods according to the present invention are not limited to squeeze molding, blow squeeze molding, air flow and press molding, or a mixture thereof, but comprise molding methods like cut molding, pour molding, and the like. The castings are products with a gating system, such as sprue, runner, ingate, and the like, and a gating system such as riser, flowoff gas vent, or the like, removed from the molded materials that are taken out from the mold after the molding flask is shaken out, such that they can be fitted to or installed in the machine as a final part or component, or can be commercially sold as independent products, such as a round-shaped brake drum or a square case. The molten metals described above are those ferrous or non-ferrous metals in a melted state that can be poured into the mold. (0011)
The mold according to the present invention is explained below, based on the Figures. As shown in Figs. 1 to 4, the mold according to one embodiment of the present invention is comprised of a lower mold 5, which is a main mold molded in a molding flask 2, by a green sand molding method, using green sand 1. The lower mold has a concave portion 4 having the shape of a product, into which portion the amount of molten metal 3 that is required to produce a casting is poured. The mold has an upper mold 15, which is a main mold molded in a molding flask 12, by the green sand molding method, using green sand 11, and which has a convex portion 14, having the shape of the product, which portion forms a cavity that is required to produce a casting W.
A structure A is formed so as to have certain clearances (gaps) between the press-fit portion Fl of the lower mold 5 and the press-fit portion F2 of the upper mold 15, such that it prevents molten metal from leaking onto the parting plane Pa formed by the parting plane PIa of the lower mold 5 and the parting plane P2a of the upper mold 15 when they overlap to produce a casting. (0012) Structure A, which prevents the molten metal from leaking, comprises a protruding press-fit portion 6, protruding from the parting plane PIa, and formed along the outer circumference of the concave portion 4 of the lower mold 5, and a groove portion 16, formed on the upper mold 15, which portion fits with the protruding press-fit portion 6. Thus press-fit portions Fl and F2, according to the embodiment of the present invention, are the protruding press-fit portion 6 and the groove portion 16. The certain clearances (gaps) are clearance δ 1 in the horizontal direction, between the side face 6a of the protruding press-fit portion 6, and the side face 16a of the groove portion 16, which side face is a side face of a press-fit portion 17 positioned close to the outer circumference of the convex portion 14 of the upper mold 15, a clearance δ 2 in the horizontal direction, between the other side face 6c of the protruding press-fit portion 6, and the other side face 16c of the groove portion 16, and a clearance δ 3 in the vertical direction between the top face 6b of the protruding press-fit portion 6, and the bottom face 16b of the groove portion 16. These clearances are arranged so as to be in a range of from 0.1 to 4.0 mm. This is because if the clearance were less than 0.1 mm, the upper mold 5 and the lower mold 15 might come into contact with each other. If the clearance were to be more than 4.0 mm, as shown in Fig.5 ,a casting W may be affected by a broken casting when metal S, which has become solidified in the clearance, is removed. To make the clearance larger than this is undesirable. The protruding press-fit portion 6 is not limited to any particular shape, so long as it has a shape that surrounds the product along its circumference, or the outer periphery of a square, or the like. In one embodiment of the present invention, the protruding press-fit portion 6 is shown to have a round shape (ring). That shape is most effective in preventing a leakage of molten metal when the casting W has a circular shape in its periphery, as seen in Figs. 2 and 3. However, in place of this circular shape (ring), a number of pins with a narrow spacing between them or a number of crescents spaced apart that form a ring shape, can also be used. (0013) The shapes of the protruding press-fit portion 6 and the groove portion 16, according to the present invention, are not particularly limited, if they have forms (for example, shapes and dimensions) that are functional, in the pressurized process, in preventing excess molten metal from leaking onto the parting plane Pa, a plane formed by the overlapping of the upper mold and the lower mold. In one embodiment of the present invention, the shapes of the protruding press-fit portion 6 and the groove portion 16 are made close to those of rectangles. These include a square, a trapezoid, and the like, in their cross section perpendicular to a parting plane PIa of the lower mold 5 and a parting plane P2a of the upper mold 15. The structure thus formed prevents excess molten metal 3 from leaking onto the parting plane Pa because the molten metal 3 either rises towards the upper mold or makes a detour if it should slip through clearances δ 1 to δ 3 formed by the overlapping of the upper mold 15 and the lower mold 5. However, the molten metal has reduced kinetic energy when it rises (makes a detour) toward the upper mold, and thus its leaking onto the parting plane is easily prevented.
The height of the protruding press-fit portion 6 as measured from the parting plane PIa and the depth of the groove portion 16 as measured from the parting plane P2a are arranged so as to be in the range of from 5 to 50 mm, while each of the clearances δ 1, δ 2, and δ 3 between the press-fit portion Fl of the lower mold 5 and the press-fit portion F2 of the upper mold 15 is appropriately secured. This is because it is feared that the molten metal 3 may pass through the clearances δ 1, δ 2 and δ 3 and may leak onto the parting plane Pa if both the height and the depth were less than 5 mm. That height is insufficient for having the kinetic energy of the molten metal 3 reduced. If both the height and the depth were more than 50 mm, a problem may arise, in molding a protruding press-fit portion and a groove portion. That is, because if a molding material is not appropriately filled in these areas, then the areas near the convex portion or the corner areas of the protruding press-fit portion and a groove portion may lack strength.
Also, the widths of both the protruding press-fit portion 6 and the groove portion 16, while securing the clearances δ 1, δ 2, and δ 3 between the press-fit portion Fl of the lower mold 5 and the press-fit portion F2 of the upper mold 15, are arranged so as to be in the range of 10 to 50 mm. This is because, if the width were to be less than 10 mm, it is feared that the molten metal 3 that rises could pass straight through the horizontal clearance and could leak onto the parting plane Pa. If the width were to be more than 50 mm the effect of preventing the molten metal from rising and leaking onto the parting plane would be overcome by the deficiency in the strength of the parting plane due to the decrease of the surface area of the parting plane. This strength is essential when the upper and lower molds overlap. Therefore, to make the width more than 50 mm is not desirable. (0014) In one embodiment of the present invention, as shown in Fig. 6, a flowoff hollow (cavity) 18 can be formed on a press-fit portion 17 positioned close to the outer circumference of the convex portion 14 of the upper mold 15. The flowoff hollow 18, when formed, can prevent the molten metal from leaking onto or passing over the parting plane Pa and leaking out of the mold, by absorbing excess molten metal Sl that has been disadvantageously left unused, depending on the level of accuracy in the pouring of the pouring machine, from the area where the molten metal is finally poured in the pressurizing process. There can be just one flow-off cavity 18, depending on the amount of excess molten metal, or by changing the shape of a flow -off hollow, and the like. In the embodiment of the present invention, a total of 12 hollows are formed along the circumference of the press-fit portion 17, at equal intervals. (0015)
The area ratio of the opening portion 18a of the flow-off hollow 18 to the split surface 17a of the casting W at the press-fit portion 17 of the upper mold 15 (the area ratio being in the direction of the thickness of the castings W) is preferably 1 to 20% per each of the flowoff hollows 18. This is because if the area ratio were to be more than 20%, the flow-off portion that became solidified in the flowoff hollow would be so thick that it is feared that the casting would suffer a broken casting if the flow -off portion were to be broken off. Also, the casting may be affected by a deformation of the shape at the corner areas of the casting W, where the molten metal is finally reached in the pressurizing process, because the pressurizing force cannot be sufficiently exerted on the molten metal. (0016) The ratio of the weight of the excess molten metal that enters the flow-off hollow 18 to the weight of the molten metal requires to produce the casting W is preferably 1 to 20% per each flowoff hollow 18. This is because if the ratio of the weight were to be more than 20%, an excessive pressure would be applied to the molten metal in a pressurizing process and a problem of penetration would occur with the portion of the casting W where the molten metal is finally reached. (0017)
Another embodiment of the present invention is now explained. In the above-mentioned embodiment, Structure A, which prevents any leakage of molten metal, comprises a protruding press-fit portion 6 and a groove portion 16. However, in the present embodiment, as shown in Fig. 8, Structure B is formed so as to prevent a leakage of molten metal by having, in the range of 5 to 50 mm, a step H between a split surface 33a of the casting W, at the press-fit portion 33, which is close to the circumference of the protruding portion 32 of the upper mold 31, and the parting plane P2b of the upper mold 31, which is at the outer circumference of the split surface 33a. According to this embodiment structure B is simpler than Structure A. Thus it can prevent any leakage on the parting plane when the pouring is performed accurately, and the amount of molten metal is pre-determined. A step H is arranged so as to be in the range of from 5 to 50 mm. If H is less than 5 mm, molten metal may leak onto the parting plane because the height is too low to have the kinetic energy of the molten metal be reduced. If H is more than 50 mm, a casting may be affected by low strength of the convex portion and corner areas of the mold, depending on the complexity of the shapes of the concave portion or the convex portion of the casting, such that when a casting has a higher protrusion and a deeper concave portion the molding material may not be sufficiently filled when the casting is produced. (0018) Also in this embodiment, as in the previous one, a clearance between the press-fit portion F3 of the lower mold 21 and the press-fit portion F4 of the upper mold 31 is arranged so as to be in the range of from 0.1 to 4.0 mm. The press-fit portion F3 of the lower mold 21 of the present embodiment is the upper end (top) portion 22, which forms a parting plane Pl of the lower mold 21.
The press-fit portion F4 of the upper mold 31 is a press-fit portion 33 of the upper mold 31. The clearance (gap) is in the horizontal direction between the inner side face 22a of the upper-end portion 22 and the press-fit side face 33b of the press-fit portion 33 of the upper mold 31.
(0019)
In this embodiment of the present invention, as is the case with the previous embodiment, and as shown in Fig. 9, at least one flowoff hollow 34 can be formed on the press-fit portion 33 of the upper mold 31.
(0020)
The area ratio of the opening portion 34a of the flow -off hollow 34 formed on the press-fit portion 33 to the split surface 33a of the casting W at the press-fit portion 33 of the upper mold 31 is preferably 1 to 20%.
(0021)
The ratio of the weight of the excess molten metal that enters the flowoff hollow 34 to the weight of the molten metal required to produce a casting is preferably 1 to 20%.
Brief Descriptions of the Drawings
(0022)
Fig. 1 shows a vertical cross section of the lower mold and the upper mold of the mold in one embodiment of the present invention. Fig. 2 shows a vertical cross section of the casting in one embodiment of the present invention.
Fig. 3 shows a plan view of a casting in one embodiment of the present invention.
Fig. 4 shows a vertical cross-section of the mold comprising the lower mold, and the upper mold overlapping the lower mold, as shown in Fig. 1.
Fig. 5 illustrates metal that has become solidified in the clearance.
Fig. 6 shows a vertical cross section of a mold comprising the lower mold, and the upper mold having a flow off hollow formed therein and overlapping the lower mold.
Fig. 7 illustrates the conditions of excess metal as absorbed in a flowoff hollow as shown in Fig. 6.
Fig. 8 shows a vertical cross section of a mold comprising the lower mold, and the upper mold overlapping the lower mold in another embodiment of the present invention.
Fig. 9 shows a vertical cross-section of a mold comprising the upper mold, and the upper mold having a flowoff hollow formed therein and overlapping the lower mold as shown in Fig. 8.

Claims

Claims:
1. A mold comprising: a lower mold comprising a concave portion having a shape of a casting, into which portion an amount of molten metal required to produce castings is poured; and, an upper mold comprising a convex portion having a shape of a molded product and forming a cavity required to produce castings, when the upper mold overlaps the lower mold; wherein a structure is formed so as to have certain clearances between a press-fit portion of the lower mold and a press-fit portion of the upper mold, such that the molten metal is prevented from leaking onto a parting plane formed where the upper mold and the lower mold overlap when the casting is produced.
2. The mold according to claim 1, wherein the structure that prevents the molten metal from leaking comprises a protruding press-fit portion protruding from the parting plane, and formed along the outer circumference of the concave portion of the lower mold, and a groove portion, formed on the upper mold such that it fits with the protruding press-fit portion.
3. The mold according to claim 1, wherein at least one flow-off hollow for the molten metal is formed on the press-fit portion positioned close to the outer circumference of the convex portion of the upper mold.
4. The mold according to claim 1, wherein the clearances between the press-fit portion of the lower mold and the press-fit portion of the upper mold are arranged so as to be in a range of from 0.1 to 4.0 mm.
5. The mold according to claim 2, wherein the shapes of the protruding press-fit portion and the groove portion are made to be almost rectangle in the cross section perpendicular to the parting plane of the lower mold and the parting plane of the upper mold.
6. The mold according to claim 2, wherein the height of the protruding press-fit portion as measured from the parting plane and the depth of the groove portion as measured from the parting plane are arranged so as to be in the range of from 5 to 50 mm, while the clearances are secured between the press-fit portion of the lower mold and the press-fit portion of the upper mold.
7. The mold according to claim 2, wherein the widths of both the protruding press-fit portion and a groove portion are arranged so as to be in the range of 10 to 50 mm, while the clearances are secured between the press-fit portion of the lower mold and the press-fit portion of the upper mold.
8. The mold according to claim 3, wherein the area ratio of an opening portion of the flowoff hollow to a split surface of the casting at the press-fit portion positioned close to the outer circumference of the convex portion of the upper mold is arranged so as to be from 1 to 20%.
9. The mold according to claims 3 and 8, wherein the ratio of the weight of the excess molten metal that enters the flowoff hollow to the weight of the molten metal required to produce the casting is 1 to 20%.
10. The mold according to claim 1, wherein a structure is formed so as to have a step in the range of from 5 to 50 mm between the split surface of the casting, at the press-fit portion, which is close to the outer circumference of the protruding portion of the upper mold, and the parting plane of the upper mold, which is at the outer circumference of the split surface.
11. The mold according to claim 10, wherein a clearance between the press-fit portion of the lower mold and the press-fit portion of the upper mold is arranged so as to be in the range of from 0.1 to 4.0 mm.
12. The mold according to claim 10, wherein at least one flowoff hollow is formed on the press-fit portion which is close to the outer circumference of the convex portion of the upper mold.
13. The mold according to claim 12, wherein the area ratio of an opening portion of the flowoff hollow to a split surface of the molded product at the press-fit portion positioned close to the outer circumference of the convex portion of the upper mold is arranged so as to be from 1 to 20%.
14. The mold according to claim 12 or 13, wherein the ratio of the weight of the excess molten metal that enters the flowoff hollow, to the weight of the molten metal required to produce the casting, is in the range of from 1 to 20%.
EP07745563A 2006-10-16 2007-06-22 Mold Active EP2077922B1 (en)

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JP2006281354A JP2008093727A (en) 2006-10-16 2006-10-16 Mold
PCT/JP2007/063059 WO2008047502A1 (en) 2006-10-16 2007-06-22 Mold

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EP2077922A1 true EP2077922A1 (en) 2009-07-15
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JP (1) JP2008093727A (en)
KR (1) KR20090088864A (en)
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BR (1) BRPI0717611A2 (en)
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Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008027682B4 (en) * 2008-06-10 2011-03-17 Eduard Heidt Method for producing thin-walled and high-strength components
US20110084194A1 (en) * 2009-09-24 2011-04-14 Dgel Sciences Cassette for biological analysis and method of making thereof
CN102139353A (en) * 2011-03-15 2011-08-03 中核苏阀横店机械有限公司 Leakproof casting box
US8863817B2 (en) * 2011-06-30 2014-10-21 United Technologies Corporation System and method for high temperature die casting tooling
EP3095579B1 (en) * 2011-08-04 2019-03-27 Husky Injection Molding Systems Ltd. A method of operating a mold
CN102935492B (en) * 2012-11-11 2014-12-10 骆驼集团华南蓄电池有限公司 Casting mold of butt welding columns
US8985187B2 (en) 2012-11-28 2015-03-24 Palmer Manufacturing And Supply, Inc. Auto-closer for centering and closing cope and drag sand mold halves
US9142530B2 (en) * 2013-03-21 2015-09-22 Stats Chippac Ltd. Coreless integrated circuit packaging system and method of manufacture thereof
KR101340672B1 (en) * 2013-06-21 2013-12-12 심순식 A core assembly of mold and the casting wooden pattern using the core assembly
CN103447461A (en) * 2013-09-09 2013-12-18 梧州漓佳铜棒有限公司 Copper anode plate casting mold with overflow-prevention boss
CN104308083B (en) * 2014-10-09 2018-07-17 北京时代锐智科技有限公司 The metal mold and its compression casting method of gear box cover
CN104439099A (en) * 2014-12-05 2015-03-25 沈阳工业大学 Suspension pressing casting method for preparing compressor cylinder cover
EP3800030B1 (en) 2015-03-20 2023-04-05 Husky Injection Molding Systems Ltd. Molding system having a mold stack with a cleaning configuration and a shut height adjustment mechanism
CN106334784A (en) * 2016-09-07 2017-01-18 滁州市鑫鼎机械模具制造有限公司 Casting mold used for manufacturing refrigerator compressor casting machine frame
CN207669673U (en) 2016-12-14 2018-07-31 赫斯基注塑系统有限公司 Opposite opened mould insertion piece and mold stack

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633603A (en) * 1950-06-28 1953-04-07 Hiram N Huse Mold
US3540516A (en) * 1967-09-18 1970-11-17 Kelsey Hayes Co Method for making castings
US3968829A (en) * 1971-06-25 1976-07-13 Kabushiki Kaisha Akita Molding apparatus with shielding mold member
CH607755A5 (en) * 1974-08-30 1978-10-31 Inst Po Metalloznanie I Tekno
JPS5650772A (en) * 1979-09-28 1981-05-08 Art Kinzoku Kogyo Kk Metal mold unit for molten metal forging
JPS59206133A (en) * 1983-05-11 1984-11-21 Nissan Motor Co Ltd Production of forged parts
CH675096A5 (en) * 1987-04-09 1990-08-31 Uniport Theodor Hirzel
US4775130A (en) * 1987-07-23 1988-10-04 Holdt J W Von Mold with wear member
US4856977A (en) * 1988-07-01 1989-08-15 Holdt J W Von Two stage mold centering system
US4986944A (en) * 1988-10-31 1991-01-22 Husky Injection Molding Systems Ltd. Anti-collision method and apparatus for an injection mold
US5068065A (en) * 1990-07-31 1991-11-26 Galic Maus Ventures Faster cycling sprue method and apparatus for injection molding plastic optical disks
DE4142410C2 (en) * 1991-12-20 2000-11-09 Gao Ges Automation Org Device for producing flat plastic moldings, for example identification cards by injection molding
US5925302A (en) * 1994-04-25 1999-07-20 Dai Nippon Printing Co., Ltd. Method for forming a pattern onto an article during injection molding
JPH08117966A (en) * 1994-10-25 1996-05-14 Mitsui Mining & Smelting Co Ltd Production of metallic mold for forming and device for casting metallic mold for forming
US5620720A (en) * 1994-11-29 1997-04-15 Allergan Cast molding of intraocular lenses
DK134295A (en) * 1995-11-28 1997-05-29 Formkon Aps Process for making two or multi-part molds
JP2000263613A (en) * 1999-03-11 2000-09-26 Asahi Chem Ind Co Ltd Method for injection compression molding of thermoplastic resin molding
GB9906240D0 (en) * 1999-03-19 1999-05-12 Ocular Sciences Limited Lens mould
US6468381B1 (en) * 1999-06-01 2002-10-22 Acushnet Company Method of making a golf ball and golf ball compression mold
JP2002301558A (en) * 2001-04-06 2002-10-15 Honda Motor Co Ltd Metal mold structure for casting
US20030067088A1 (en) * 2001-10-09 2003-04-10 Scolamiero Stephen K. Method for making golf ball cores and apparatus for use therein
CN1410191A (en) * 2002-10-23 2003-04-16 黄祖国 Thin wall metal casting technology of upper mould heavy force profiling
GB0304148D0 (en) * 2003-02-25 2003-03-26 Concavex Ltd Contact lens mould
US7481645B2 (en) * 2003-06-27 2009-01-27 Biosphere Industries, Llc Method for use in baking articles of manufacture and mold for use in said method
JP2005052871A (en) * 2003-08-06 2005-03-03 Sintokogio Ltd Casting method and mold therefor
FR2860445B1 (en) * 2003-10-06 2006-02-03 Silva Serge Da METHOD FOR MANUFACTURING A MOLD AND MOLD OBTAINED
US6936213B1 (en) * 2003-11-18 2005-08-30 Sorensen Research And Development Trust Adjustment of relative positions of machine components
GB2408960B (en) * 2003-12-12 2008-01-30 Nokia Corp In-mould labelling
DE102004038852B4 (en) * 2004-08-10 2006-06-29 Webasto Ag injection molding machine
CN100368108C (en) * 2004-11-22 2008-02-13 比亚迪股份有限公司 Bending stretch shaping method and shaper for low-melting point alloy mould
JP4628125B2 (en) * 2005-02-09 2011-02-09 日本プラスト株式会社 Resin leakage prevention structure
JP4643343B2 (en) * 2005-04-13 2011-03-02 東芝機械株式会社 Clamping device
EP1829631A3 (en) * 2006-10-20 2007-10-31 Sintokogio, Ltd. A casting method to produce a casting and a press used for the casting method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008047502A1 *

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JP2008093727A (en) 2008-04-24
ATE520488T1 (en) 2011-09-15
EP2077922B1 (en) 2011-08-17
CN101528387A (en) 2009-09-09
CN101528387B (en) 2011-06-08
US20090321612A1 (en) 2009-12-31
EA014212B1 (en) 2010-10-29
BRPI0717611A2 (en) 2013-03-26
EA200970383A1 (en) 2009-08-28
DE102007026295A1 (en) 2007-10-18
US8061409B2 (en) 2011-11-22
WO2008047502A1 (en) 2008-04-24
KR20090088864A (en) 2009-08-20

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